Video-stylet for Nasotracheal Intubation

Comparison of Conventional Laryngoscopy and Video-stylet to Assist Nasotracheal Intubation for Patients Undergoing Oro-Maxillo-facial Surgery

The purpose of this study is to compare conventional laryngoscopy with video-stylet (Trachway) for nasotracheal intubation in patients undergoing oro-maxillo-facial surgery.

Inclusion Criteria:

1. patients with American Society of Anesthesiologists physical status I-III
2. aged 20-65 years
3. Requiring Nasotracheal Intubation under general anesthesia
4. unlimited mouth open
5. unlimited neck motion

Exclusion Criteria:

1. mouth open < 3 cm
2. Ankylosing arthritis patients.
3. BMI≧35 kg/m2